Hi,
I have a sample_dpdk_app program which uses memzone as shared memory between
the Lcores. The program was developed and tested using DPDK 19.02 , and the
code works as expected. On compiling the same sample_dpdk_app with DPDK 20.08 ,
we notice the following issues,
1. The memzone used as shared memory seems to be corrupted. Primary writes a
structure into the memzone and when secondary reads the structure, I see that
some of the structure members are corrupted.
2. During compilation we see this warning
/opt/dpdk/dpdk-20.08/x86_64-native-linuxapp-icc/include/generic/rte_rwlock.h(142):
warning #68: integer conversion resulted in a change of sign
if (x != 0 || __atomic_compare_exchange_n(&rwl->cnt, &x, -1, 1,
^
I am not sure if the above mentioned issues are related, Any help will be
greatly appreciated !!
---
Primary lcore creates the memzone as shown below
const struct rte_memzone* zone = rte_memzone_reserve("testzone", 64*numFlows,
rte_socket_id(), RTE_MEMZONE_2MB);
Secondary lcore does a lookup of the memzone as shown below
const struct rte_memzone* zone = rte_memzone_lookup("testzone");
Thanks & Regards,
Ruban
